There are a couple of other options I'm looking at, but none seem to use the jQuery UI themes... not sure what I'm going to do, since I had planned on using the official autocomplete widget. After seeing some of the other options available, I'm not sure anymore.
Already tried that, but I don't think it really fits with the look/feel of the UI I want.
The only issue is that the default styles for checkboxes, radiobuttons, and file selects are... suboptimal, and vary across browsers a fair amount. I want them to blend in a bit better, but we don't have a competent designer/UI engineer, so I'm off-the-shelfing it.